Rotary motor.



E. E. HAUER. ROTARY MOTOR. APPLICATION LED DEC. 6 1-914- 7 I 1,185,200. Patented May 30, 1916.

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UNITED STATES PATENT onnron.

ELMER E. I-IAUER, OF SPRINGFIELD, OHIO, ASSIG-NOR, BY MESNE ASSIGNMENTS, TO

ELLIOTT COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENN- SYLV'ANIA.

ROTARY MOTOR.

Specification of Letters Patent.

Application filed December 16, 1914. Serial No. 877,492.

Springfield, in the county of Clark and State of Ohio, have invented certain new and useful Improvements in Rotary Motors, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to rotary motors and. more particularly to a motor for driving tube cleaners that is adapted to travel through a tube with the cleaner, although it may be used for other purposes.

The object of my invention is to provide a simple and efficient motor of few parts that will be durable in the severe service for which it is particularly designed.

A further object is to provide improved means for securing the rotary motor member to its shaft.

A further object is to provide improved bearings that will both carry and take the end thrust of the shaft.

With these and other objects in view my invention consists of the constructions and combinations hereinafter described and set forth in the claims.

In the accompanying drawings which form a part of this specification Figure 1 is a longitudinal section partially in elevation of a motor embodying my invention and Figs. 2 and 3 are cross-sections taken onthe line 22 and 33 respectively of Fig. 1.

In the drawings a body or casing having a supply head 1 with forwardly projecting cylinders 2 and 3 and a cross-partition 4 within the inner cylinder 3 is preferably formed integrally as shown. The inlet 5 of the supply head opens into the inner cylinder 3 and an opening 6 through the longitudinal wall of said cylinder admits the motive agent to an annular chamber 7 formed between the cylinders 2 and 3. The inner cylinder 3 is shorter than the outer cylinder 2 and the bore is enlarged at 8 as shown.

A ported partition 9 may be secured in any suitable way to form the front wall of the annular chamber 7 but is shown as screw-threaded at 10 to the inner cylinder.

A rotary motor member 11 having a rearward extension 11 projecting through an opening 9 of the ported partition and which is shown in the form of a turbine having buckets 12 operates within a motor chamber 13 formedby the enlarged bore 8 of the outer cylinder. Said rotary motor member is further provided'with a forward extension 14 with a recess 15 therein extending from its front end; and said; member is keyed to a shaft 16 by a key 17' and is tight ened and held against a shoulder 18 of the shaft by a nut or holding member 19 on the screw-threaded end 20 of said shaft. The recess 15 is screw-threaded as shown for the attachment of the tool to be driven.

Patented May 30, 1916.

The inner cylinder 3 forms a bearing 7 chamber into which the shaft 16 projects and is journaled in oppositely disposed antifriction bearings. These bearings are of like construction and a description of one will answer for the other. In Fig. 1 of the drawings the cage for the forward bearing is shown in section and for therear hearing it is shown in elevation. The shaft 16 is provided with inelinedshoulders 21 for each of the bearings and preferably between said shoulders and the cylindrical portions 22 of the shaft on which the rollers are seated grooves-23' are provided to facilitate the grinding of said cylindricalportions. Cages 24 having beveled ends 25 are provided with longitudinal slots 25 in which r0llers 26 having beveled or inclined ends 27 are seated.

A divided bushing 28, the respective portions of which are screw-threaded together at 29, is provided at its outer ends with inclined shoulders 30 and is fitted within the bearing chamber. I

The rollers and their-beveled or inclined ends extend beyond the surface of the cages and operate between the cylindrical portions of the shaft and bushing, the beveled or inclined ends of the rollers being seated be-- bearings therein is then slipped within the bearing chamber and tightened and held in place by the ported partition 9.

Lubricant is supplied to the bearing chamber through a passage 32 in the shaft and a plug 33 is provided at the outer end of said. passage. A packing 34 between the front end of the bushing and the ported partition and abutting the rear extension of the ro tary motor member prevents leakage of the motive agent into the bearing chamber.

Having thus described my invention I claim 1. In a rotary motor, a casing or body open at its front end and having a central rearwardly extending bearing chamber closed at its rear end, means introduced through said front end to form a ported partition and close the front end of said chamber, a rotary motor member having a shaft projecting through an opening in said partition into said bearing chamber, said shaft having an inclined shoulder, a bushing fitted in said chamber and having an inclined shoulder, longitudinally extending rollers between said shaft and bushing and between said shaft shoulder and bushing shoulder, the ends of the rollers being inclined to conform to the inclination of the respective shoulders and means to conduct the motive agent to said ported partition, substantially as described.

2. In a rotary motor, a casing or body open at its front end and having a central rearwardly extending bearing chamber closed at its rear end, means introduced through said front end to form a ported partition and close the front end of said chamber, a rotary motor member having a shaft projecting through an opening in said partition into said bearing chamber, said shaft having cylindrical portions with inclined shoulders, a bushing fitted in said chamber and having inclined shoulders, longitudinally extending rollers between said cylindrical portions and bushing and between said shaft and bearing shoulders, the ends of said rollers being inclined to conform to the inclination of the respective shoulders, said bushing being arranged to adjust and hold said shoulders in proper relation to said rollers and means to conduct the motive agent to, said ported partition, substantially as described.

3. In a rotary motor, a casing or body having a motor chamber with fluid supply openings thereto and a bearing chamber, a rotary motor member in said motor chamber having a shaft projecting into said bearing chamber, said shaft having cylindrical portions with inclined shoulders, a bushing fitted in said bearing chamber and having inclined shoulders, longitudinally extending rollers between said cylindrical portions and bushing and between said shaft and bushing shoulders, the ends of said rollers being inclined to conform to the inclination of the respective shoulders, said bushing being arranged to adjust and hold said shoulders in proper relation to said rollers and means to hold the same in adjusted position within said bearing chamber, substantially as described.

4. In a rotary motor, a casing or body having a motor chamber at its front end and a bearing chamber extending rearwardly therefrom, a rotary motor member having a rearward extension projecting into an opening in the rear wall of said motor chamber and having a shaft journaled in said bearing chamber, substantially as described.

5. In a rotary motor, a casing or body having a motor chamber at its front end and a bearing chamber extending rearwardly therefrom, a rotary motor member having a forward extension adapted to attach the tool to be driven and a rearward extension projecting into an opening in the rear wall of said motor chamber and a shaft journaled in said bearing chamber, substantially as described.

In testimony whereof I have hereunto aifixed my signature in the presence of two witnesses.

ELMER E. HAUER.

Qopies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents, Washington, D. G. 

